<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=620906
-->
<head>
  <title>Test for Bug 620906</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=620906">Mozilla Bug 620906</a>
<p id="display"></p>
<div id="content">
  <iframe src="data:text/html,
    <body contenteditable
          onmousedown='
            document.designMode=&quot;on&quot;;
            document.designMode=&quot;off&quot;;
          '
    >
      <div style='height: 1000px;'></div>
    </body>">
    </iframe>
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 620906 **/
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
  var iframe = document.querySelector("iframe");
  is(iframe.contentWindow.scrollY, 0, "Sanity check");
  var rect = iframe.getBoundingClientRect();
  setTimeout(function() {
    var onscroll = function () {
      iframe.contentWindow.removeEventListener("scroll", onscroll, false);
      isnot(iframe.contentWindow.scrollY, 0, "The scrollbar should work");
      SimpleTest.finish();
    }
    iframe.contentWindow.addEventListener("scroll", onscroll, false);
    synthesizeMouse(iframe, rect.width - 5, rect.height / 2, {});
  }, 0);
});

</script>
</pre>
</body>
</html>
